Ngwongwo, welded, shea igwe na ihe nkedo juputara na nkedo ịnweta nke na-ebelata mkpọtụ epoxy resin.
Nke a na-emepụta ihe ndị mejupụtara nwere nkwụsi ike ogologo oge nke na-enyekwa ọkwa dị mma nke static na ike siri ike.
Dịkwa ya na ihe na-ejuputa radieshon